Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
We currently have a Catalyst 3560G connected to a Catalyst 3750G via GBICs, and the connection will go up, and then a few seconds later it will go down. If the GBICs are reseated, the connection will go back up, but then go back down a few seconds l...
I have two Catalyst 3570 switches, switch A and switch B, connected via GBICs in uplink ports. The ports are randomly disconnecting, so I am suspecting that one of the mini GBICs is failing, but I cannot figure out which one. Is there a way to figu...
In hopes to monitor all packet activity on a Catalyst 3750 switch, I have created a SPAN where I have been attempting to use the destination port for packet sniffing. The issue is that I can only see broadcasts as well as inbound/outbound activity f...
I would like to setup a vlan on our existing network. We have a 2800 used as an edge router connected to cat. 3750 used as a layer 3 switch. We have several other layer 2 switches connected to the 3750. I have a subnet that will be used for the v...
I had two Cat. 3750 switches that I needed to perform the password recovery on. I used the guide from Cisco listed below. The first switch went as expected without any issues. However, I ran into an issue with the second switch. At step 10. where ...
I cleaned the existing fiber patch cables with some rubbing alcohol, but the connection was still dropping. I then swapped out the fiber patch cables for a new pair, and the connection continued to drop. I have a spare switch that I can swamp switc...
I did not even think about cleaning/swapping out the fiber patch cords. Switch B is in a high dust environment, so that is likely where I will start. The randomness of the disconnections did not make sense to me as I assumed that if it were a GBIC ...
show monitor session 1 detailSession 1---------Type : Local SessionSource Ports :RX Only : NoneTX Only : NoneBoth : Gi1/0/1-10,Gi1/0/12-24Source VLANs :RX Only : NoneTX Only : NoneBoth ...
I am 98% certain this is how I network is laid out:-Lines come in to a multilink on our router, 2800, and then go out FastEthernet 0/0 to the firewall.-Line comes in on Ethernet 0/0, with a public IP, and then goes out on Ethernet 0/1, with a private...
